/*
 * Copyright 2025 The Data Transfer Project Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.datatransferproject.datatransfer.synology.utils;

import javax.annotation.Nonnull;

public class UrlUtils {
  public static String join(@Nonnull String baseUrl, @Nonnull String path) {
    if (baseUrl.isEmpty()) {
      throw new IllegalArgumentException("Base URL cannot be empty");
    }

    boolean baseEndsWithSlash = baseUrl.endsWith("/");
    boolean pathStartsWithSlash = path.startsWith("/");

    if (baseEndsWithSlash && pathStartsWithSlash) {
      return baseUrl + path.substring(1);
    } else if (!baseEndsWithSlash && !pathStartsWithSlash) {
      return baseUrl + "/" + path;
    } else {
      return baseUrl + path;
    }
  }
}
